Liquid mixing valve



March 15, 1949. K M NEWCOMER l 2,464,458

LIQUID MIXING VALVE Filed Oct. l5, 1947 2 Sheets-Sheet 1 'llll llllATTCI R N EYB March l5, 1949. K. M, NEWCOMER 2,464,458

LIQUID MIXING VALVE Filed Oct. 15, 1947 2 Sheets-Sheet 2 Patented Mar.15, 1949 UNITED STATES PATENT oFFlcE LIQUID MIXING VALVE Keepers M.Newcomer, Pittsburgh, Pa. Application October 15, 1947, lSerial No.780,003

Claims.

The invention relates to a valved faucet, and more particularly to amixing valve for liquid dispensing, such as hot and cold water.

The primary object of the invention is the provision of a valve of thischaracter, wherein a single stream of liquid can be dispensed or shutoff, and such stream will involve a single or several iiow volumes ofliquid fed from independent sources, such for example as hot and coldwater, the dispensed liquid stream being temperature controlled, withoutdisturbing the volume thereof.

Another object of the invention is the provision of a valve of thischaracter, wherein the control is effected from a single hand leverwhich is readily accessible above, sideways or forwardly of thedispensing faucet for the liquid.

A further object of the invention is the provision of a valve of thischaracter, wherein the same is assured of a positive mechanical actionand requires but one hand for its operation with immediate desiredresults in volume of liquid, as well as any temperature from hot to coldor vice-versa.

A still further object of the invention is the provision of a valve ofthis character, which is simple in construction, thoroughly reliable andenicient in operation, easily repaired, conveniently actuated, durable,neat in appearance, quick acting, readily operated, and inexpensive tomanufacture and install.

With these and other objects in view, the invention consists in thefeatures of construction, combination and arrangement of parts as willbe hereinafter more fully described, and illustrated in the accompanyingdrawing, which shows the preferred form of the invention, and pointedout in the claims hereunto appended.

In the accompanying drawing:

Figure 1 is a top plan view of a mixing valve constructed in accordancewith the invention;

Figure 2 is a sectional view taken on the line 2-2 of Figure 1 lookingin the direction of the arrows;

Figure 3 is a view similar to Figure 1, with the top cover plateremoved;

Figure 4 is a sectional view taken on the line 4 4 of Figure 2 lookingin the direction of the arrows with the operating lever in dualactuating position and Figure 5 is the same in a single actuatingposition.

Similar reference characters' indicate corresponding parts throughoutthe several views in the drawing.

Referring to the drawing in detail, A designates generally a faucetcomprising a hollow body Il) formed with a pouring spout I I which leadsfrom the mixing cavity I2 created by the hollow in said body, so thatliquid delivered into the said cavity will be discharged or dispensedtherefrom through the spout.

Threadably received in the bottom I3 of the body Ill are externallythreaded nipples I4 which are adapted to be connected to hot and coldwater service lines, respectively. These nipples I4 are arranged atopposite-sides of the spout and have communication with the cavity I2 inthe body IIJ through openings I5 formed in the bottom I3, while adaptedto open and close these openings I5 are vertically movable valves I6,one for each opening.

The valves I6 have their stems I'I projected upwardly through bonnets I8detachably threaded onto the body Iii at the upper neck portions I9thereof, which are integral with the said body. The stems I1 of thevalves I6 have the multiple square threads 20 and 2| thereon screwedinto the necks I9, the threads 20 being reversed to the threads 2 I, sothat when the said stems I'l are reversely rotated the valves I6 will beseated or unseated simultaneously with respect to each other.

Fixed in the body Ill, centrally between the neck portions I9, is averti-cal pivot post 22 on which is mounted a horizontally swingableinverted U-shaped bracket or movable turntable 23, which has formedonthe upper end thereof the framelike structure 24 carrying the coverplate 25 over the forward portion thereof, and provided with the cutout26 in the rear thereof. Mounted in the framelike structure 24transversely thereof, is the pivot pin 21 on which, centrally thereof,is iixed the eccentric roller 28 which has threadably secured thereinthe hand lever 29. The eccentric roller 23 has a movement equal toapproximately one fifth of a rotation, and the handle 29 entering thecutout 25 permits such rotation as shown in Figure 4.

The eccentric is rotatably mounted in the parallel upstanding ears 3l!and 30 respectively formed on the gear 3|. The gear 3| is turnable andslidable within the bracket 23, and is loosely mounted to allow lateralor horizontal play as the eccentric is rotated by means of the handle2S. Movement of the handle up and down causes backward and forwardmovement [of thegear 3|;

while sideward movement of the handle'Z causes rotation of the gear 3l.

When the handle 29 is in the cutout 26 in the frame 24, and the cutout32 in the ear 3D' on the gear 3|, the temperature of the water from thefaucet is controlled by the lateral movement of the handle 29 whichcauses the gear and bracket 23 to rotate simultaneously. The angle ofthe handle 29 is formed to properly operate the valves I6.

The eccentric which is located between the ears on the gear 3|, movesgear 3| to its various positions, through the movements or hand lever2d.

The teeth of the gear 3| are adapted for meshing engagement with thesector-shaped gears 32 and 33 iixed to the stems i1 respectively byscrews 34. The hand lever 29 controls the shifting of the gear 3l, whilethe lateral turning of the bracket 23 controls the rotation of this saidgear 3|.

When the gear 3| is shifted rearwardly by the forward and upward motionof the lever 23, so that the axis of rotation of the gear 3| willcoincide with the axis of rotation of the bracket 23, both valves itopen to an equal extent, then if the bracket 23 is rotated on the post22, the proportions of the mixture and consequent temperature of theliquid may then be controlled, the hand lever by its connection to theeccentric 28 being a single medium for these controls.

The cover plate may have thereon appropriate markings or indicia forindicating the on and "oi now of liquid and the temperature controlthereof.

The multiple threads 20 and 2l are arranged so that a partial turn ofthe stems il is suiiicient to open the valves i3.

When the valves are partially opened, the gears Sil, 3| and 33respectively, are in the position shown in Figure 2 of the drawing, thatis to say, they are in transverse alignment with each other crosswise ofthe body iii of the faucet, i, e., to open the said valves, further,th;J hand lever 22 is pushed upwardly as in Figure 5. Then when it isdesired to close the valves I5, the hand lever is pushed downwardly asin Figure When valves |65 are closed, gears 32 and 33 are slightly tothe front of the alignment of all these gears, and this position of thegear 3l allows for changing the fulcrum of this gear when it movesforwardly. The eccentric 33 provides the movement for the gear 3| whichmovement compensates for lateral play or movement when in operation.

When the gear 3| is moved forwardly and rearwardly of the alignment ofgears 32 and 33, that is, when valves it are opened full, gear ti hasmoved in front of the alignment of gears 32 and 33 about the same amountas when the valves i6 are closed and gear 3| is moved back of alignmentof gears 32 and 33.

This full movement forward oi gear 3| caused by pulling up on the lever2S gives you the full volume and pressure of one valve, that is, iiftyper cent for each, due to each valve opening half way. Now by lateralmovement either way, one valve will tend to close as much as the otherwill open, until one is closed completely and the other is opencompletely.

Either valve may be opened full without opening the other one, bypulling up lever 29, and at the same time pushing it backward or pullingit forward.

When only one liquid is desired, such as all hot (or all cold) water,the hand lever 29 is pulled upward, and at the saine time pressed orpulled forward as much as gear will allow. By doing this, only oneliquid ows, such as all hot water, in the desired amount. This movementof lever 29, that is, up and to you, will open only one valve, and upand away from you will open only one valve.

It is believed that from the foregoing description, the construction andoperation of the device will be apparent to those skilled in the art,and it is to be understood. that changes in the minor details ofconstruction, arrangement and combination of parts may be resorted to,provided they fall within the spirit of the invention and the scope ofthe appended claims.

Having thus described the invention, what is claimed as new and desiredto be secured by Letters Patent is:

1. A mixing valve of the kind described, cornvprising a body having aliquid mixing cavity therein, valves controlling admission of severalliquids to the cavity, a single discharge spout on the body and leadingfrom said cavity, stems operating the valves, gears fixed to the stemsfor turning the same, an inwardly and outwardly slidable and reverselyrotatable gear, intermediate of and meshing with the said gears,upstanding parallel ears formed on said last mentioned gear, aneccentric operatably mounted intermediate of said ears, and meansconnected to said eccentric which is manually operated to actuate theslidable and reversely rotatable gear.

2. A mixing valve of the kind-described, comprising a body having aliquid mixing cavity therein, valves controlling admission of severalliquids to the cavity, a single discharge spout on the body and leadingfrom said cavity, stems operating the valves, gears fixed to the stemsfor turning the same, an inwardly and outwardly slidable and reverselyrotatable gear intermediate of and meshing with the said gears,upstanding parallel ears formed on said last mentioned gear, aneccentric operatably mounted intermediate of said ears, means connectedto said eccentric which is manually operated to actuate the slidable andreversely rotatable gear, and a cover plate for the gears and havingindicia identifying the direction of movements for the opening andclosing of the valves and the control of liquid admissions to thecavity.

3. A mixing valve of the kind described, comprising a body having aliquid mixing cavity therein, valves controlling admission of severalliquids to the cavity, a single discharge spout on the body and leadingfrom said cavity, stems operating the valves, gears xed to the stems forturning the same, an inwardly and outwardly slidable and reverselyrotatable gear intermediate of and meshing with the said gears, parallelupstanding ears formed on said last mentioned gear, an eccentricoperatably mounted intermediate said ears, means connected to saideccentric which is manually operated to actuate the slidable andreversely rotatable gear, necks formed on the body for the stems, andreversed threaded connections between the said stems and necks,respectively.

4. A mixing valve of the kind described, comprising a body having aliquid mixing cavity therein, valves controlling admission of severalliquids to the cavity, a single discharge spout on the body and leadingfrom said cavity, stems operating the valves, gears fixed to the stemsfor turning the same, an inwardly and outwardly slidable and reverselyrotatable gear intermediate of and meshing with the said gears,upstanding parallel ears formed on said last mentioned gear, aneccentric operatably mounted intermediate of said ears, means connectedto said eccentric which is manually operated to actuate the slidable andreversely rotatable gear, necks formed on the body for the stems,reversed threaded connections between the said stems and necks,respectively, and a turntable mounting on the body for the said meansand forming a Way for the slidable and rotatable gear.

5. A mixing valve of the kind described, comprising a body having aliquid mixing cavity therein, valves controlling admission of severalliquids to the cavity, a single discharge spout on the body and leadingfrom said cavity, stems operating the valves, gears xed to the stems forturning the same, an inwardly and outwardly slidable and reverselyrotatable gear intermediate of and meshing with the said gears,upstanding No references cited.

